Am I crazy?

Recently Ive had a lot of drama in my life and honestly I put all of the emotional emotions away from me.

Today my ex boyfriend tried to get back with me and If I didn't, the threatened to kill my daughter and my husband. I didn't tell him because I knew my husband would freak out.

But I asked my Ex boyfriend to meet me at the park where we met, he waited outside of it and he held up a pocket knife towards my throat. He threatened me and suddenly something inside me snapped. I grabbed the knife by the blade and threw it over by a tree I started punching him in the face until he started bleeding from both his mouth and nose.

Afterwards I stomped on his guts and his crotch and left. But the problem with me is that I heard a male voice that kept telling me to keep kicking his ass.

Am I crazy?